"I'm not going to solely blame all of man's activities on changes in climate. Because the world's weather patterns are cyclical. And over history we have seen change there. But kind of doesn't matter at this point, as we debate what caused it. The point is, it's real, we need to do something about it."Alright, so Palin is saying that the world's weather patterns are cyclical, which would mean that our current warming/cooling/whatever we're in right now may not be attributable to man's activities. Fine, that's her opinion. But then to say that we need to do something about it begs the question: why must we do something about a phenomenon that we are not responsible for? It's almost like claiming that although we may not be responsible for leaves falling off of trees in autumn, it's a real thing, so we have to do something about it. Even if the leaves falling would cause the calamitous end of humanity, if you can't stop it, what's the point?
You can be a firm believer in man's complete responsibility for the gradual increase in world temperatures since the Industrial Revolution and thus believe that we need to act to stop greenhouse gas emissions to save our planet. But you can't believe that we didn't do it and can't affect the weather and then say we have to stop the rain (although China says they can!)